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Date: | Wed, 25 Apr 2012 00:27:19 -0600 |
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the third harmonic of 49.1 MHZ is 147.3MHZ. Interesting, that's my local
VHF repeater frequency
Also, I wonder how wide the band width is on the transmitter? if say 50K or
something obnoxious like that for HQ audio, then it would slice into quite a
bit of the ham band at the third harmonic.
I wonder if you check 98.2MHZ on an FM radio receiver if you might hear the
same noise...that would be the second harmonic.
73
Colin, V A6BKX
----- Original Message -----
From: "Tom Brennan" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, April 24, 2012 2:06 PM
Subject: Re: some discoveries re: reception on ht and echo link.
> Linda, Advanced Bionics uses a 49.1 mHz uplink and a 106.6 downlink for
> their
> units. The uplink could be causing you a third harmonic problem although
> it
> really shouldn't.
>
> To check this the easy way, you'll either need a hearing person or you'll
> have
> to have some hearing with your implants shut down. Set your ht for
> maximum
> problem and shut down your implants. If the noise in your receiver stops
> you've
> probably found the problem and you'll then need to be checking for a
> shielding
> issue if the problems happen at a distance of more than a few feet from
> your
> implants.
>
> Tom
>
>
> Tom Brennan KD5VIJ, CCC-A/SLP
> web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html
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